The only difference between them "on average" is the isotopes of oxygen involved. Variations involving bond switching, or thermal oscillation / rotation will be removed upon averaging.
It has a different amount of space between molecules.
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molecules
the molecules required by our body in small quantity is kown as macro molecules
adhesion
The molecules in a solid vibrate in place. The molecules of a liquid are moving about.
It has a different amount of space between molecules
There is no chemical difference, the only difference is the speed in which the molecules of the substances move. Slower molecules can be solid or liquid and very high speed molecules can be gas.
is this someone from 9I??
In these molecules the difference of the electronegativity between the two atoms is significant.
A functional group works
Atoms and molecules are the same and have no differences